tanagr cefnddu

== Welsh == === Noun === tanagr cefnddu m (plural tanagrod cefnddu) black-backed tanager (Stilpnia peruviana syn. Tangara peruviana) === Mutation === === Further reading === Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎[1], retrieved 6 October 2025.